Whey protein isolate coating material for high oxygen barrier properties: A scale-up study from laboratory to industrial scale and its application to food packaging
- Authors
- Song, H.-G.; Choi, I.; Lee, J.-S.; Chang, Y.; Yoon, C.S.; Han, J.
- Issue Date
- Mar-2022
- Publisher
- Elsevier Ltd
- Keywords
- Gas barrier properties; Multilayer film; Scale-up study; Shrimp fried rice packaging; Whey protein isolate
- Citation
- Food Packaging and Shelf Life, v.31
- Indexed
- SCIE
SCOPUS
- Journal Title
- Food Packaging and Shelf Life
- Volume
- 31
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/136493
- DOI
- 10.1016/j.fpsl.2021.100765
- ISSN
- 2214-2894
- Abstract
- To apply whey protein isolate (WPI) as a food packaging material industrially, a three-step study was performed. First, the WPI coating solution was screened for plasticizer type, plasticizer concentration, and pH to minimize its oxygen permeability. The production batch size was scaled-up from 1 to 320 L. Next, the PET film was sequentially coated with the WPI and laminated with a linear low-density polyethylene (LLDPE) film using an industrial manufacturing facility. The developed multilayer (PET/WPI/LLDPE) film was compared to the aluminum oxide (AlOx)-deposited multilayer (PET/AlOx/LLDPE) film. The PET/WPI/LLDPE films showed high oxygen and water vapor barrier properties. Finally, the PET/WPI/LLDPE films were applied as frozen shrimp fried rice (SFR) packaging. For 6 months, they delayed peroxide formation in the SFR samples, as much as the PET/AlOx/LLDPE films did. These results indicated that the developed film has high potential as a packaging material for frozen foods in practical applications. © 2021 Elsevier Ltd
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Collections - Graduate School > Department of Biotechnology > 1. Journal Articles
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